Gonna try the hand at PROM Tuning, like to hear opinions.
09-14-2013, 11:30 PM
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Gonna try the hand at PROM Tuning, like to hear opinions.
So I'm a newbie to this whole PROM tuning. Would like to hear opinions on what you guys are using out of all the software/ hardware listed in some of the stickys. What should I look at getting for myself? Thanks in advance.
09-16-2013, 02:42 PM
#2
Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Depends on how much you wish to spend. Look at Craig Moates site for basic hardware. Tuning software is free(almost). If you are serious about tunining a modded engine dynamicefi is the choice.
09-16-2013, 11:09 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
I'm serious about attempting to learn how to tune. I'll check that site out and figure out what I'll need. Thanks.
09-19-2013, 03:56 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
I would agree on the Moates hardware. This guy has it all and supports his products well. Alot of folks are using TunerPro for software. If you get the right versions, you can edit bins and datalog. Not the easiest to use, but very powerfull and lots of support. Another one i use to edit bins is Tunercat. Very easy to use, but specific to certain PROM masks. And some cost involved.
09-19-2013, 05:04 PM
#6
Re: Gonna try the hand at PROM Tuning, like to hear opinions.
I use Tuner Pro (Have for years), I actually have a copy V3 on floppy somewhere. lol
I use mostly Moates hardware.
My current tuning stash has:
1 ALDL Xtreme
1 Tunerview II
1 Chip extender 1.0 (installed in a friend's car currently, which makes tuning his car easy, no dropping the ECM to access the EEPROM)
1 Burn2
2 HDR1s
3 Ostrich 2.0s
2 Socket Boosters (needed for '7747 when using Ostrich 2.0)
1 Auto Prom
Several G1 adapters
1 2timer, though I haven't used it yet. :/
A few Honda and Ford tuning items that I have never used, just got through deals.
1 14point7.com SLC_DIY1 (Been using this for years to tune other people's cars, but is now installed in my car.)
1 14point7.com SLC_PP2 (just received this yesterday)
I have had 2 LC-1s, but sold/traded both due to them having serial comms and USB to serial adapters being flaky.
I also have had a Moates O-meter, which is a great little display that goes well with the LC-1. I have the combo installed in a friends car (my old LC-1 from my car), and it works well. Cool little display, and almost hated giving it up.
So as you can see I am a fan of Moates products, and recommend them to everyone. It's taken me about 8 years to gather all of these items, but tuning, especially tuning a single vehicle can be done with FAR fewer items. lol
I will be honest though, I don't buy certain things from Moates, because I can get a few items cheaper elsewhere, that are not Moates exclusive, or I make my own, for the more simple items.
I have not used Dynamic EFI products, but they do look interesting from a single vehicle tuning stand point.
I use mostly Moates hardware.
My current tuning stash has:
1 ALDL Xtreme
1 Tunerview II
1 Chip extender 1.0 (installed in a friend's car currently, which makes tuning his car easy, no dropping the ECM to access the EEPROM)
1 Burn2
2 HDR1s
3 Ostrich 2.0s
2 Socket Boosters (needed for '7747 when using Ostrich 2.0)
1 Auto Prom
Several G1 adapters
1 2timer, though I haven't used it yet. :/
A few Honda and Ford tuning items that I have never used, just got through deals.
1 14point7.com SLC_DIY1 (Been using this for years to tune other people's cars, but is now installed in my car.)
1 14point7.com SLC_PP2 (just received this yesterday)
I have had 2 LC-1s, but sold/traded both due to them having serial comms and USB to serial adapters being flaky.
I also have had a Moates O-meter, which is a great little display that goes well with the LC-1. I have the combo installed in a friends car (my old LC-1 from my car), and it works well. Cool little display, and almost hated giving it up.
So as you can see I am a fan of Moates products, and recommend them to everyone. It's taken me about 8 years to gather all of these items, but tuning, especially tuning a single vehicle can be done with FAR fewer items. lol
I will be honest though, I don't buy certain things from Moates, because I can get a few items cheaper elsewhere, that are not Moates exclusive, or I make my own, for the more simple items.
I have not used Dynamic EFI products, but they do look interesting from a single vehicle tuning stand point.
09-19-2013, 06:49 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Well this is what I went with.... Should be sufficient for now.... Though I probably wont be using the stuff anytime soon unless I figure out the multitude of mechanical issues I'm currently having. A bit frustrated right now.
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09-19-2013, 07:14 PM
#8
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Looks good, for starters. But i dont see a MEMCAL adaptor in your bag of goodies. You need a way to get the new chip into the ECM. Moates sells them for sure.
09-19-2013, 07:22 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
RBob.
09-19-2013, 07:25 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
09-21-2013, 03:49 AM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Yes, RBOB pointed me in the right direction. Many thanks for the help. I will definitely be seeking out all the expertise and knowledge you guys hold. Thanks again.
09-26-2013, 04:15 AM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Well I'm back. 95% of the mechanical issues are solved. Only other thing left is the cooling fan is giving me crap. Previous 180 stat got stuck open, running a new 180 stat and the fan is turning on at like 165-170 again like before when the other stat got stuck open. Hopefully the new one isn't stuck too. Now i can finally put my new goodies to use. 
Just gotta figure out where i wanna start. I guess I'll start with the G2 adapter. Actually one question. In the g2 install instructions it shows a blue adapter... See pic... Was i supposed to get that with my order? If so, I don't have it. 
Just gotta figure out where i wanna start. I guess I'll start with the G2 adapter. Actually one question. In the g2 install instructions it shows a blue adapter... See pic... Was i supposed to get that with my order? If so, I don't have it. Last edited by weaz4200; 09-26-2013 at 04:27 AM.
09-26-2013, 06:09 AM
#13
Re: Gonna try the hand at PROM Tuning, like to hear opinions.
The blue piece is just a zif, you can insert your sst into the dip header and just pop that out to reflash. The zif makes it easier to remove the sst but you wouldn't want to use it for anything more than tuning not a good permanent solution.
09-26-2013, 08:19 AM
#14
Re: Gonna try the hand at PROM Tuning, like to hear opinions.
While I do agree that ZIF sockets shouldn't be thought of as a permanent item, I have ran a couple vehicles for a few years at a time using ZIF sockets without issue.
As said the ZIF socket is optional and is recomended if you're doing the old school log, burn 'n' swap technique, since it reduces the likelyhood of breaking the legs off the EEPROM or adapter or damaging eithe in anyway due to repeated removal and installation.
If an emulator is used, the ZIF socket is not as neccesary.
As said the ZIF socket is optional and is recomended if you're doing the old school log, burn 'n' swap technique, since it reduces the likelyhood of breaking the legs off the EEPROM or adapter or damaging eithe in anyway due to repeated removal and installation.
If an emulator is used, the ZIF socket is not as neccesary.
09-26-2013, 09:23 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
So I should just go ahead, solder in my G2 and I'm golden. Hopefully I don't have to pull the chip too many times then.
09-27-2013, 09:41 AM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Yes, install the G2. When I removed the stock sockets I would first pry the socket body off of the pins (see tool mentioned lower). This leaves the pins, which are then removed by heating the solder and pulling each out with tweezers.
Then solder-sucker the holes open. Insert G2 and solder it in place.
Be sure not to damage any traces when prying the body off, and be sure not to pull the insert (barrel) out of any of the pin holes.
No more then a hundred or so times
Be sure to use something to get under the chip to pry it loose. Do not pull it out with your fingers. One tool I have is an old worn rounded out flat blade screwdriver. With the shaft bent at about a 30* angle.
Great for getting chips out and so on.
RBob.
Then solder-sucker the holes open. Insert G2 and solder it in place.
Be sure not to damage any traces when prying the body off, and be sure not to pull the insert (barrel) out of any of the pin holes.
No more then a hundred or so times
Be sure to use something to get under the chip to pry it loose. Do not pull it out with your fingers. One tool I have is an old worn rounded out flat blade screwdriver. With the shaft bent at about a 30* angle. Great for getting chips out and so on.
RBob.
09-27-2013, 09:52 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Insert barrel? I do not have this solder sucker you speak of, I will have to acquire it.
Seeing as I dont have the sucker I just decided to pull the stock EPROM chip and start messin around a bit... Ran into a problem. Tunerpro didnt want to read my chip. Buffer Addressing was wrong. Not sure what that means but I believe I finally got my stock tune read. Now maybe I can stare at the screen for the next few hours and make some light on it all.
Seeing as I dont have the sucker I just decided to pull the stock EPROM chip and start messin around a bit... Ran into a problem. Tunerpro didnt want to read my chip. Buffer Addressing was wrong. Not sure what that means but I believe I finally got my stock tune read. Now maybe I can stare at the screen for the next few hours and make some light on it all.
Last edited by weaz4200; 09-28-2013 at 03:36 AM. Reason: Figured it out.
09-28-2013, 10:20 AM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Insert barrel? I do not have this solder sucker you speak of, I will have to acquire it.
Seeing as I dont have the sucker I just decided to pull the stock EPROM chip and start messin around a bit... Ran into a problem. Tunerpro didnt want to read my chip. Buffer Addressing was wrong. Not sure what that means but I believe I finally got my stock tune read. Now maybe I can stare at the screen for the next few hours and make some light on it all.
Seeing as I dont have the sucker I just decided to pull the stock EPROM chip and start messin around a bit... Ran into a problem. Tunerpro didnt want to read my chip. Buffer Addressing was wrong. Not sure what that means but I believe I finally got my stock tune read. Now maybe I can stare at the screen for the next few hours and make some light on it all.
Solder sucker:
http://www.radioshack.com/product/in...ctId=17241906#
RBob.
09-28-2013, 11:02 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Well it's desoldered. Hope it's all good. Question. Just trying to get acquainted with the flags as that seems easier then the rest. Where can I find out what certain flags mean. Like for example, EGR TYPE? Thanks
Last edited by weaz4200; 09-29-2013 at 12:59 AM.
10-01-2013, 01:26 AM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Not at the point of needing it yet since I'm still reading through the stickys on tuning but I assume I should be looking at a wideband O2/kit? I've seen some suggestions here and there throughout the forum, though I figured I'd ask here as well. Should I gear towards any ones specific?
10-01-2013, 08:30 AM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
As for definitions of the BIN parameters, there are some write ups on particular subjects. But no all in one listings. Would need to go into the hac to see what the comment says.
In Tuner Pro comments can be added to an XDF file. Which can then be viewed.
RBob.
10-09-2013, 03:51 AM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Looks good from here, be sure to insert the socket in in the proper direction.
As for definitions of the BIN parameters, there are some write ups on particular subjects. But no all in one listings. Would need to go into the hac to see what the comment says.
Spent some time making a dash in Tunerpro and get acquainted with the prog. Still have yet to solder in the adapter. Been busy with some small side projects.
Couple of questions...
1) Probably already know the answer but should I get a hood on the car before I try and mess with the tune? The combo wont clear a stock hood so I'm turning the stock hood into a cowl hood. I'm thinking there will be quite a difference with the lack of underhood temps with no hood vs once I get the hood on.
2) Wouldn't it be wise to get a datalog of how the car is currently behaving to get a better idea of where I should concentrate on changes? I'd like to at least get a log and have someone at least glance at it and see what's going on so if I do have questions in reference to changes at least you guys know how its running/what its doing.
3) Obviously I've been spending time reading the sticky's and whatever other articles I come across. Curious if there's any recommended articles or if I should spend more time looking for TBI/746 specific write ups?
4) Ran across a thread/s where the program "VE Fixer" was referenced. Is this something I should look at and/or use in my quest to learn PROM tuning?
10-09-2013, 08:40 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
(insert Pink Floyd lyrics) Hello.... hello.... hello... Is there anybody out there? Where is everybody? All the views on this thread and only a few contributions? Thanks to all that have contributed up till now. Adrenaline is pumpin and I'm tryin to move along the learning process, though I could use some help. 
10-11-2013, 06:08 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
G2 soldered in. Gonna go get a datalog and I'll figure this out myself. Thanks
10-13-2013, 03:05 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Issue solved. Im throwing up a log. Need some feedback.
Last edited by weaz4200; 10-13-2013 at 03:43 PM.
10-13-2013, 04:40 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Use the wide correction at the end of the BLM log to adjust the VE tables. Note that there are two that you need to deal with. See the Tuning Guide Book sticky, chapter 5, 8063/7747/8746 ($4D/$42/$61): section for more info on how the two VE tables interact.
RBob.
RBob.
10-14-2013, 01:24 AM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Well that's quite a read. Will most likely have to reread a few more times.. Though this is where I was gonna start. STOCK bin, unmodified numbers in VE table's. Note attached file. Not sure what to do after 3600 RPM's exactly but under 3600 flat line the cells to 20. Take numbers (from notepad/the difference) and add them to the main table under the specified RPM and all MAP pressures under that RPM. Once I do that take a look at my BLM log and figure out what cells require change.
Still unsure how to translate my WIDE CORRECTION numbers from the log to the respectable cell in the bin but I'll try to figure it out later.
THANKS,
ROB
Still unsure how to translate my WIDE CORRECTION numbers from the log to the respectable cell in the bin but I'll try to figure it out later.
THANKS,
ROB
10-15-2013, 01:12 AM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Well here's what I've come up with. Hope nothin blows up. 
Stock tables pictured on left with changes to be made listed. Right side is adjusted table with changes applied. We'll see what it does.
Stock tables pictured on left with changes to be made listed. Right side is adjusted table with changes applied. We'll see what it does.
10-20-2013, 10:57 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
TTT. No feedback, comments or suggestions?
10-21-2013, 08:36 AM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
How did it work out? There is quite a jump up in VE from 3200 RPM to 3600+ RPM.
RBob.
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10-21-2013, 11:17 AM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
How did it work out?
There is quite a jump up in VE from 3200 RPM to 3600+ RPM.
10-21-2013, 11:29 AM
#32
Re: Gonna try the hand at PROM Tuning, like to hear opinions.
so once im past 3200 RPMS im only in the VE2 table.
Best of my recollection....
10-21-2013, 01:04 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
What Ronny posted. This is true for nearly all tables, both 2D and 3D. Once the axis value goes above or below the maximum or minimum table axis, that first or last row or column is used.
An exception to this (note the 'nearly' in first sentence) is the cranking PW versus DRP counts as used in $8D. $32B and $6E most likely do the same thing. It is an indexed look up and the code will go back to the beginning of the table. And go through it again until the engine starts.
RBob.
An exception to this (note the 'nearly' in first sentence) is the cranking PW versus DRP counts as used in $8D. $32B and $6E most likely do the same thing. It is an indexed look up and the code will go back to the beginning of the table. And go through it again until the engine starts.
RBob.
10-22-2013, 11:25 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
So let me see if I got this right...
So any RPM above 3200 is going to use the 3200 value at the given MAP reading + whatever number I have in the VE 2 table at the specific RPM.
Take a look at the PIC i attached. So lets say 4800 RPM's... So it'd be 3200 RPM/80 MAP (74.61) + 40.63?
So I added values up to 3200 from VE 2 adder to MAIN VE table. (note pic)
So then how are the numbers past 3200 addressed?
From the "taking fuel from ve 2 and adding it to ve1 thread......"
So in that thread he has "18" @ 3600 and in order to use the "20" value he subtracted 2 from main VE but where does adding "2" to all RPMS after 3600 in VE2 come from... So changing the 3600 from 18 to 20 nets a difference of 2... So then you do the opposite for all RPMS after 3600?
Note my pic again... So if I went along with that pattern I'd change my VE2 41.8 @ 3600 to (19.92) 41.8 - 19.92 = 21.88 difference... Then add 21.88 to MAIN TABLE 3200 RPMS but then also subtract 21.88 for RPMS 4000 - 6400? Im confused.
So any RPM above 3200 is going to use the 3200 value at the given MAP reading + whatever number I have in the VE 2 table at the specific RPM.
Take a look at the PIC i attached. So lets say 4800 RPM's... So it'd be 3200 RPM/80 MAP (74.61) + 40.63?
So I added values up to 3200 from VE 2 adder to MAIN VE table. (note pic)
So then how are the numbers past 3200 addressed?
From the "taking fuel from ve 2 and adding it to ve1 thread......"
The best thing to do would be to shuffle the ve between the two tables in order to get the VE adder table to be flat at some constant value up to 3600 rpm. This way you can move some of the VE over to the main table and still have the VE lean out at higher rpms. In addition itll also allow you to easily see what the engines VE curve looks like. To elaborate, lets say the table is the following
VE RPM
25 400
40 800
18 1200
15 1600
30 2000
15 2400
17 2800
14 3200
18 3600
25 4000
23 4400
21 4800
...
Id pick some value that Id want the VE 2 to be, say 20 as an example. Id add and subtract the following from the main VE tables at each rpm and subtract or add to teh values in the above table to get:
VE RPM
20 400, add 5 to main VE
20 800, add 20 to main VE
20 1200, subtract 2 from main VE
.
.
.
20 3600, subtract 2 from main VE
...and Id have to add two to all the
rest of the values after 3600 rpm to
maintain the proper VE after 3600 RPM
25 4000 -> 27 4000
23 4400 -> 25 4400
21 4800 -> 23 4800
etc.
VE RPM
25 400
40 800
18 1200
15 1600
30 2000
15 2400
17 2800
14 3200
18 3600
25 4000
23 4400
21 4800
...
Id pick some value that Id want the VE 2 to be, say 20 as an example. Id add and subtract the following from the main VE tables at each rpm and subtract or add to teh values in the above table to get:
VE RPM
20 400, add 5 to main VE
20 800, add 20 to main VE
20 1200, subtract 2 from main VE
.
.
.
20 3600, subtract 2 from main VE
...and Id have to add two to all the
rest of the values after 3600 rpm to
maintain the proper VE after 3600 RPM
25 4000 -> 27 4000
23 4400 -> 25 4400
21 4800 -> 23 4800
etc.
Note my pic again... So if I went along with that pattern I'd change my VE2 41.8 @ 3600 to (19.92) 41.8 - 19.92 = 21.88 difference... Then add 21.88 to MAIN TABLE 3200 RPMS but then also subtract 21.88 for RPMS 4000 - 6400? Im confused.
10-25-2013, 06:47 PM
#35
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Well this is what I came up with (see pic). This is only modifying VE1 and VE2 (no BLM changes)
1) Should I take my BLM log and also add it to the main table now or wait and go for another drive to log new BLM numbers? (BLM log I have is from before when I had the stock VE1/VE2 tables/tune)
2) Should I address (smooth out) the slight high points in the main table or leave alone?
1) Should I take my BLM log and also add it to the main table now or wait and go for another drive to log new BLM numbers? (BLM log I have is from before when I had the stock VE1/VE2 tables/tune)
2) Should I address (smooth out) the slight high points in the main table or leave alone?
10-26-2013, 09:40 AM
#36
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Well this is what I came up with (see pic). This is only modifying VE1 and VE2 (no BLM changes)
1) Should I take my BLM log and also add it to the main table now or wait and go for another drive to log new BLM numbers? (BLM log I have is from before when I had the stock VE1/VE2 tables/tune)
2) Should I address (smooth out) the slight high points in the main table or leave alone?
1) Should I take my BLM log and also add it to the main table now or wait and go for another drive to log new BLM numbers? (BLM log I have is from before when I had the stock VE1/VE2 tables/tune)
2) Should I address (smooth out) the slight high points in the main table or leave alone?
As for BLM corrections, need to add the proper VE1 and VE2 cells together, apply the correction, then break them apart. That is to properly apply the correction so that it only affects that RPM/MAP.
RBob.
10-26-2013, 11:41 AM
#37
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Interesting. I thought once you add the adder table to the main table then you leave the adder table alone so as to only focus on the main table with future changes. Guess i gotta read the stickies again cause either i missed that part or somehow misunderstood.
10-26-2013, 01:12 PM
#38
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
If a change is required at 3200 RPM, need to be careful as any change in the VE1 table affects all RPM ranges from 3200 RPM and up.
See the dilemma? I got away from the main & adder VE table setup very quickly. They are OK for low power engines, but still a serious compromise.
RBob.
10-26-2013, 02:12 PM
#39
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
If a change is required at 4200 RPM, can't do it in the VE1 table.
If a change is required at 3200 RPM, need to be careful as any change in the VE1 table affects all RPM ranges from 3200 RPM and up.
See the dilemma? I got away from the main & adder VE table setup very quickly. They are OK for low power engines, but still a serious compromise.
While you replied I was looking at this....
From Dimented24x7...
I should also say that once youve done this you can leave the second VE table alone below 3600 rpm. Jsut work with the main VE table.
Just for giggles I wanted to see where adding the entire ADDER table (up to 3200 RPMS) to the main table would place the percentages... Seems like just adding all values from STOCK adder table over to the Stock main table already places the injectors at/around the point of being static already? So just on the stock tune, there's already times it may run at 95%, if I'm understanding correctly. That's wild. (pic included)
Also posted stock vs current modified tables.. Now just need to smooth out the modified tables a little and I'm gonna go ahead, burn it and run it. I'll post the smoothed tables in a bit.
Thanks,
ROB
10-26-2013, 02:42 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Modded table from previous post (#39) smoothed.
One other question. At what point do I start to consider the injectors going static and should be concerned? As in some are around 95% already. Should I manually input my own values to bring them down to say no more than 90%? Or try running as is in my final table?
Thanks,
ROB
One other question. At what point do I start to consider the injectors going static and should be concerned? As in some are around 95% already. Should I manually input my own values to bring them down to say no more than 90%? Or try running as is in my final table?
Thanks,
ROB
10-26-2013, 03:29 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Injector duty cycle and volumetric efficiency are two completely different things.
RBob.
RBob.
10-29-2013, 10:00 PM
#42
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Injector duty cycle and volumetric efficiency are two completely different things.
Obviously in order to get good BLM data I need to stay out of PE... So in the 8746 is my PE the "PE Mode High Coolant"? (note pic)
If that's the case, TPS % is 25. So should I put it at something like 50 or 75 as to stay out of PE?
10-30-2013, 11:18 AM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
I believe I set mine to 100% TPS to disable. running the XWay at 4000-5000 rpms gets some stares(Hooker Aerochambers w/ real duals).
Curious if you know what constitutes "LOW COOLANT"? Also what is the threshold before it switches from low and is considered "HIGH COOLANT"?
10-30-2013, 11:42 AM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Yea, check my pic in the #42 post. If those aren't the ones im looking for then what parameter do i need to address to stay out of PE?
10-30-2013, 11:57 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
I see. The thumbnail is so small I cant read it. I sdtill think it is a modifer to PE A/F
1 - 61v3
2 - 61 PREVOST
3 - $61
4 - 61v2
61v3 and 61v2 share the same 2 tables that I posted earlier. PE - TPS Threshold vs RPM for PE mode Low Coolant and PE - TPS Threshold vs RPM for PE mode High Coolant.
61 PREVOST utilizes 1 table. TPS Threshold vs RPM for WOT mode (same values as 61v3/61v2 PE - TPS Threshold vs RPM for PE mode Low Coolant table)
$61 uses TPS Threshold vs RPM for P.E. mode. (Also same values as 61v3/61v2 PE - TPS Threshold vs RPM for PE mode Low Coolant table)
NOTE pic. So Im still not sure exactly which is the TPS% for PE enable. I could be wrong but maybe TPS% for PE enable should be a SCALAR with a single value not a table?
11-01-2013, 03:36 PM
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Re: Gonna try the hand at PROM Tuning, like to hear opinions.
Code:
LD257: FCB 23 ; coolant for tps% tbl threshold, 120c
Note that 120* C is 248* F.
Code:
;*==============================================
;*
;* Do Power Enrichment Quals
;*
;*==============================================
;
; get baro adj tps% val
;
LDA25: CE D3 AE LDX #$D3AE ; Tps Mult vs. Baro
LDA28: BD FB 67 JSR LFB67 ; get a baro adjusted tps% value
LDA2B: 36 PSHA ; save baro adj tps%
;
; get tps% required for PE from tbl vs. rpm
;
LDA2C: CE D3 C5 LDX #$D3C5 ; tps% for pe tbl
;
LDA2F: D6 21 LDAB L0021 ; coolant, defaulted, 1k pu, inverse, adc cnts
LDA31: F1 D2 57 CMPB LD257 ; 23, coolant threshold, 120c
LDA34: 23 03 BLS LDA39 ; bra if coolant > 120c
;
LDA36: CE D3 B2 LDX #$D3B2 ; tps% for pe tbl
;
;
; Do Lookup for tps% required
;
LDA39: 8D 16 BSR LDA51 ; do 2d lkup w/scaled rpm
;
; if in PE now, sub out tps% hyst
;
LDA3B: 96 0D LDAA L000D ; status word
LDA3D: 2A 06 BPL LDA45 ; bra if not in PE already
;
LDA3F: F0 D2 58 SUBB LD258 ; result of lookup - 8
LDA42: 24 01 BCC LDA45 ; bra if no undrflw
LDA44: 5F CLRB ;
;
;
; now test for enough tps% for PE
;
LDA45: 32 PULA ; baro adj tps%
LDA46: 10 SBA ;
LDA47: 24 13 BCC LDA5C ;
;
;
; bra here for no PE
;
LDA49: 96 0D LDAA L000D ; status word
LDA4B: 84 7F ANDA #$7F ; clr b7, 0111 1111, PE mode bit
LDA4D: 97 0D STAA L000D ; status word
LDA4F: 20 29 BRA LDA7A ;
;
;-----------------------------------------------
;
; SubRoutine for 2d lookup w/scaled rpm val
;
;-----------------------------------------------
LDA51: 96 1A LDAA L001A ; rpm scaled
LDA53: 44 LSRA ; rpm /= 2
LDA54: 44 LSRA ; rpm /= 2
LDA55: 89 00 ADCA #0 ; rnd up A
LDA57: BD FB 95 JSR LFB95 ; 2d lkup
LDA5A: 16 TAB ; return w/val in both A & B
LDA5B: 39 RTS ; and done >>>> Code:
LD257: FCB 23 ; coolant for tps% tbl threshold, 120c
The code...
Code:
LDA2C: CE D3 C5 LDX #$D3C5 ; tps% for pe tbl
and the code...
Code:
LDA36: CE D3 B2 LDX #$D3B2 ; tps% for pe tbl
..and the LD257 exist in the middle. That is the extent of my understanding.
Plus looking at the Hex editor in TunerPro to see where the code is, is even more confusing as it jumps around the table.
Don't know what the point I'm trying to make is other than...BLEH.